2021030103 has 8 divisors (see below), whose sum is σ = 2701744128. Its totient is φ = 1343834744.

The previous prime is 2021030083. The next prime is 2021030107. The reversal of 2021030103 is 3010301202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2021030103 - 2¹⁰ = 2021029079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021030107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 878325 + ... + 880622.

It is an arithmetic number, because the mean of its divisors is an integer number (337718016).

Almost surely, 2^2021030103 is an apocalyptic number.

2021030103 is a deficient number, since it is larger than the sum of its proper divisors (680714025).

2021030103 is a wasteful number, since it uses less digits than its factorization.

2021030103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759333.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2021030103 is about 44955.8683933477. The cubic root of 2021030103 is about 1264.3217062808.

Adding to 2021030103 its reverse (3010301202), we get a palindrome (5031331305).

The spelling of 2021030103 in words is "two billion, twenty-one million, thirty thousand, one hundred three".